Need to increase gvelocity, do not need flexibility or strength exercises. Looking specifically with movements in this delivery. I am very experienced with pitching. Just mechanical work, please do not advise long toss or a strength program! Thank you!! And hope to hear some comments for this delivery. Pitch is 91mph, please click on YouTube link, I had trouble uploading the video on here...

Read through this post. Scroll down and look for similar. Looking great. Definitely many on here that can tell you about mechanics improvement. Lots of good stuff posted already in the past. Good luck

It’s for anyone who finds it useful to their situation. Finding ways to improve a 91-93 mph fastball takes experience and hardwork. Practice gratitude while keeping a open mind and the pieces will fall into place.

Agree. My advice is sort through all the older post you can. You will get some great advice soon. Absorb as much knowledge as you can. Wisdom is knowing when and how to apply it to your situation. Keep up the hard work,

To me, your biggest bang for the buck would be improving your arm action. It seems a bit long and seems a bit inefficient. Your lower half is pretty solid. Watch your infield throws and your arm action compared to most infielders.

If you were my pitcher, to improve the quickest, I would have you work on overweighted plyoball drills (pivot pickoffs specifically) and weighted ball drills to tighten up your arm action and make it more efficient/quicker. What weighted ball program are you on?

I go from 7 through 12 ounces and the regular baseball last
First I do pivot throws ,5 throws with each ball then Second I do the throws with one knee on the floor
and last I like run backwards turn and throw
And I do it with 2 day rest

If you can get a 2 lbs ball, look at doing more pivot throws than you had before. In my routine, it’s normally about 20-40 pivot throws, just depending on the day. Other than that, just keep throwing hard man. Intent to throw the ball as hard as possible is definitely the way to throw hard.